The frigate USS Constitution and the carrier Enterprise are the only two active Navy ships that are older than Cleveland. Constitution is listed as a commissioned ship afloat by the Navy.
/ US Navy

The amphibious transport dock Cleveland, which has done everything from clear coastal mines off Vietnam to move cargo during Operation Desert Storm to provide humanitarian relief to Rwanda, is scheduled to leave San Diego today on its final deployment.

The 570-foot long warship -- currently the third oldest active ship in the Navy -- will be decommissioned in September after 44 years of service, the Navy says.

The Cleveland is heading for Tonga, Papua New Guinea, Timor-Leste and other Asian-island nations to deliver humanitarian aid.